It is personal preference but half face doesn't provide much protection if you have a big off. I've got a scar from the bridge of my nose to my chin from the most recent accident and it took 2 hours to sew up. I rode with half face for 25 years though. Flip front are generally heavier and full face can be very light and comfortable but people who wear glasses find them a bit more complicated to put on/take off. If you are riding all year in all conditions a flip down shade can be useful, mostly a need in low winter sun when you tend not to be carrying shades.
It is personal preference but half face doesn't provide much protection if you have a big off. I've got a scar from the bridge of my nose to my chin from the most recent accident and it took 2 hours to sew up. I rode with half face for 25 years though. Flip front are generally heavier and full face can be very light and comfortable but people who wear glasses find them a bit more complicated to put on/take off. If you are riding all year in all conditions a flip down shade can be useful, mostly a need in low winter sun when you tend not to be carrying shades.